AMIDOGEN 



68 



AMMONIUM 



Amidogen (am-id'-o-jen) [amid ; yevvav, to produce]. 

 The hypothetical radical, NH 2 , regarded as an essen- 

 tial part of all amids. See Amid. 



Amido-glycerol (am' -id-o-glis' -er-ol). See Serin. 



Amido-kephalin (am' -id-o-kef -al-in) [amid; KE<j>aArj, 

 the head]. One of the modifications of kephalin 

 found in the brain tissue. The name is sometimes ex- 

 tended to other similar principles, the amidokephalins. 



Amido-lipotide (am' -id-o-lip' -o-lid). Any one of a 

 very peculiar group of nitrogenous fats said to exist in 

 the brain. 



Amidomyelin (am' -id-o-mi' el-in) [amid; fiveAoc, 

 marrow], C^H^NjPOj,,. A dipolar alkaloid or basic 

 principle, derivable from brain tissue. It gives name 

 to a group of similar bodies, the amidomyelins. 



Amidoplast (am'-id-o-plast) [ap.v7.ov, starch ; ■KTAaauv, 

 to form]. In biology, a name proposed by Errera for 

 leukoplastids. Proteid granules whose functions it is 

 to form starch grains. 



Amido-succinamic Acid (am'-id-o-suk-sin-am'-ik 

 as' -id). Same as Asparagin. 



Amidoxim, or Amidoxime (am-id-oks'-im). See 

 Oxamidin. 



Amidulin (am-id'-u-lin) [Fr. , amidon, starch]. Sol- 

 uble starch ; prepared by the action of H 2 S0 4 on starch, 

 thus removing the starch-cellulose. 



Amimia (ah-mim'-e-ah) [d priv. ; filfioq, a mimic]. An 

 aphasic symptom consisting in loss of the power of 

 imitation or of pantomime speech. A. Musical, patho- 

 logical loss of the power of playing musical instruments. 



Amin (am' -in) [ammonia~\. The Amins are chemi- 

 cal compounds produced by the substitution of a basic 

 atom or radical for one or more of the hydrogen atoms 

 of ammonia ; or basic derivatives of carbon, contain- 

 ing nitrogen and viewed as ammonia derivatives. In 

 deportment they bear some similarity to ammonia. 

 The lower members are gases with ammoniacal odor 

 and are readily soluble in water ; they differ from am- 

 monia in their combustibility. The highest members 

 are liquids soluble in water, only the highest are spar- 

 ingly soluble. They are called Monamins , Diamins, 

 Triamins, etc. , according to the number of amidogen 

 molecules, NH 2 , substituted for H. A. Colors. Same 

 as Anilin Colors, q. v. A. Primary, an amin in 

 which one hydrogen atom is replaced by a monovalent 

 alkyl. A. Secondary, an amin in which two hydrogen 

 atoms are replaced by monovalent alkyls. A. Ter- 

 tiary, an amin in which three hydrogen atoms are 

 replaced by monovalent alkyls. 



Aminol (am'-in-ol) [amin~\. A gaseous substance 

 derived from the methylamin of herring-brine mixed 

 with milk of lime. This gas is cheap and powerfully 

 disinfectant, and it has been used in the purification of 

 sewage. 



Amins Process. See Seiverage, Disposal of. 



Amitosis (nh-mit-o'-sis) [a priv. ; mitosis, indirect cell- 

 division, karyokinesis ; filrog, a thread; osis']. Cell 

 multiplication by direct division, or simple cleavage, 

 the nucleus usually assuming an hour-glass shape and 

 dividing before the protoplasm. The opposite of 

 mitosis. 



Amitotic (ah-mit-ot'-ik) [d priv. ; fitroc, thread]. Of 

 the nature of, or characterized by, amitosis. A. Cell 

 Division, direct nuclear subdivision, as distinguished 

 from karyokin* 



Amixia (ah-tniks'-e-ah) [a priv. ; pii-ts, mixing]. In 

 biology, the formation of a new species without the 

 mingling of two individuals or their germs ; asexual 

 reproduction, parthenogenesis. 



Amma (am' -ah) [appa, a tie: //. , Ammata\ A truss 

 or gfrale for hernia. 



Ammelid (am' -el-id) [Ammonia ; melamid'],C 3 H i N i - 



2 . A substance produced by boiling melamin wit: 

 alkalies or acids ; it is a white powder that forms salt 

 with both acids and bases. 



Ammelin (am' -el-in) [Ammonia ; melam~\, C 3 H 5 N 5 

 A white powder, insoluble in water, soluble in alkalie 

 and mineral acids. Produced by boiling melamin wit! 

 alkalies and acids. 



Ammeter (am'-et-er) [ampere ; perpov, a measure]. J 

 form of galvanometer in which the value of the cm 

 rent is measured directly in amperes. 



Ammi (am'-i) [appt, an African plant]. A genus o 

 umbelliferous herbs bearing aromatic seeds or fruits 

 The seeds of several species are locally used in medi 

 cine. Unof. A. copticum. See Ajowan. 



Ammism (am'-izm) [appoc, sand]. Ammotheraphy 

 psammism. 



Ammonemia, (am- o-ne' -me-ah). See Ammoniemia. 



Ammonia (am-o' -ne-ah) [L.]. A volatile alkali, NH, 

 See Ammonium. A. Carmin. See Stains, Table oj 



Ammoniac (am-o'-ne-ak). See Ammoniacum. 



Ammoniacal (am-o-ni' -ak-al) [ammonia"^. Containin 

 or relating to ammonia. 



Ammoniacum (am-o-ni' -ak-um) [appuviandg, belong 

 ing to ammonia ; gen. , Ammoniaci\ Ammoniac, i 

 gum obtained from a Persian plant, Dorema Amvic 

 niacum. A stimulating expectorant and laxative 

 resembling asafetida. Employed in chronic bronchis 

 affections. Dose gr. x-xxx. A. cum Hydrargyr 

 Emplastrum, ammoniac 72, mercury 18 per cent, 

 oleate of mercury .8, dilute acetic acid 100, lea 

 plaster, with sulphur, and oil, q. s. A. Emplastrun 

 100 parts of ammoniac, digested with 140 parts c 

 acetic acid, diluted, strained, and evaporated. A 

 Emulsum, a four per cent, emulsion in water, th 

 resin being suspended by the contained gum. Dos 



■§ss-j- 



Ammoniameter (am-o-ne-am' ' -et-er)[ammonia ; perpox 

 a measure]. An instrument for testing the strengt 

 of solutions of ammonia. 



Ammoniemia, or Ammoniaemia (am-o-ne-e' -me-ah 

 [ammonia; aipa, blood]. The theoretical decompos 

 tion of urea in the blood, yielding ammonium cai 

 bonate. 



Ammoniorrhea (am-o-ne-or-e' -ah) [ammonia ; pelv, t 

 flow]. The passage of ammoniacal urine. 



Ammonium (am-o' -ne-um) [from the name of Jupite 

 Amnion, because first discovered near his temple i 

 Libya; gen., Ammonii'j. A hypothetical alkalis 

 base, having the composition NH 4 . Exists only i 

 combination. It occurs most commonly in the form c 

 ammonia gas, NH 3 , which, dissolved in water, is th 

 water of ammonia of commerce. Inhalation of the gs 

 causes suffocation and edema of glottis. The sal 

 first stimulate and then paralyze the motor nerves, 

 is useful as a stimulant, as an antagonist in cardiac d< 

 pression, and locally in bites and stings of venomoi 

 reptiles and insects. Ammonia Aqua, water of an 

 monia, a solution containing ten per cent, of the g: 

 in water. Dose TTiv-gss, well diluted. A. Aqu 

 Fortior, contains 28 per cent, of the gas in solutioi 

 A. Aromatic Spt., spirit of ammonia, with am. carb 

 am. aq., ol. lemon, lavender and pimenta, alcohol an 

 water. Dose ^ss-ij. Ammonii acetas liq 

 Spirit of Mindererus, dilute acetic acid neutralize 

 with ammonia. Dose 3J-5J- A. benzoa; 

 NH t C,H 5 O r Dose gr. v-xv. A. Bicarbonai 

 Dose gr. ij-x. A. bromid, NH 4 Br. Dose gr. x-gs: 

 A. carbonas, NII 4 HCO. ) .NH 4 NH 2 C0 2 , a mixture c 

 carbonate and dicarbonate. Dose gr. v-x. / 

 chlorid, NH 4 C1, sal ammoniac. Dose gr. j-xx. / 

 chloridi trochisci, each lozenge contains gr. ij of th 

 salt. A. fluorid, used in hypertrophy of the spleei 



